Animalia > Chordata > Actinopterygii > Scorpaeniformes > Cottidae > Leptocottus > Leptocottus armatus

Leptocottus armatus (Cabezon; Pacific staghorn sculpin; Staghorn sculpin)

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Wikipedia Abstract

The Pacific staghorn sculpin, Leptocottus armatus, is a common sculpin (Cottidae) found in shallow coastal waters along the Pacific coast from Alaska to Baja California. The sole member of its genus, it is unusual for having spined antler-like projections on its gill covers; it can raise the projections as a defense mechanism. They are common in estuaries and coastal lagoons, where they feed on a variety of invertebrates, primarily amphipods such as Corophium.
View Wikipedia Record: Leptocottus armatus


Maximum Longevity [2]  10 years
Migration [1]  Amphidromous

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Cabrillo National Monument V 149 California, United States
California Coast Ranges Biosphere Reserve 153447 California, United States  
Cordell Bank National Marine Sanctuary   California, United States
Gwaii Haanas National Park Reserve II 366714 British Columbia, Canada
Mount Arrowsmith Biosphere Reserve 293047 British Columbia, Canada  
Nipomo Dunes Preserve Nature Conservancy - Preserve Ia 3725 California, United States
Pacific Rim National Park Reserve II 137900 British Columbia, Canada
Point Reyes National Seashore II 27068 California, United States
Redwood National Park II 77867 California, United States


Prey / Diet

Alitta acutifolia (ambergele zeeduizendpoot)[3]
Alitta brandti (Clam worm)[4]
Ammodytes hexapterus (Stout sand lance)[5]
Anisogammarus confervicolus[6]
Atherinops affinis (Topsmelt silverside)[4]
Aulorhynchus flavidus (Tube-snout)[5]
Cerithideopsis californica (California hornsnail)[4]
Clevelandia ios (Arrow goby)[6]
Corophium alienense[3]
Corophium salmonis[4]
Crangon alaskensis[5]
Crangon franciscorum (California bay shrimp)[5]
Cymatogaster aggregata (Shiner)[5]
Engraulis mordax (Californian anchoveta)[5]
Enophrys bison (Buffalo sculpin)[5]
Exosphaeroma amplicauda (Isopod)[5]
Exosphaeroma media[5]
Fundulus parvipinnis (California killifish)[6]
Gasterosteus aculeatus (Alaskan stickleback)[4]
Gnorimosphaeroma oregonensis (Oregon pill bug)[3]
Goniada littorea[4]
Hemigrapsus nudus (purple shore crab)[5]
Hemigrapsus oregonensis (yellow shore crab)[6]
Heptacarpus taylori (Taylor coastal shrimp)[5]
Himasthla rhigedana[4]
Hyale rubra[4]
Lepidogobius lepidus (Finescale goby)[4]
Leptocottus armatus (Cabezon)[4]
Leukoma staminea (Pacific littleneck)[4]
Lissocrangon stylirostris (smooth bay shrimp)[5]
Metacarcinus magister (Dungeness crab)[5]
Neomysis awatschensis[5]
Neomysis kadiakensis[3]
Neotrypaea californiensis (bay ghost shrimp)[4]
Pandalus danae (dock shrimp)[5]
Parophrys vetulus (English sole)[4]
Pentidotea resecata[5]
Pugettia richii (cryptic kelp crab)[5]
Pugettia venetiae (Venice kelp crab)[4]
Traskorchestia traskiana[3]
Upogebia pugettensis (blue mud shrimp)[5]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Artedius fenestralis (Padded sculpin)2
Artedius lateralis (Smooth-head sculpin)2
Ascelichthys rhodorus (Rosylip sculpin)2
Brachyramphus marmoratus (Marbled Murrelet)2
Callorhinus ursinus (Northern Fur Seal)2
Cerorhinca monocerata (Rhinoceros Auklet)2
Clinocottus acuticeps (Sharpnose sculpin)2
Cymatogaster aggregata (Shiner)2
Egretta thula (Snowy Egret)2
Fratercula cirrhata (Tufted Puffin)2
Gadus chalcogrammus (Whiting)2
Gadus macrocephalus (Pacific cod)2
Gavia pacifica (Pacific Loon)2
Gillichthys mirabilis (Longjaw mudsucker)3
Gobiesox maeandricus (Northern clingfish)2
Hexagrammos decagrammus (Kelp greenling)2
Hippoglossus stenolepis (Pacific halibut)2
Larus occidentalis (Western Gull)2
Limnodromus griseus (Short-billed Dowitcher)2
Limosa fedoa (Marbled Godwit)2
Liparis cyclopus (Günther's liparid)2
Metacarcinus magister (Dungeness crab)4
Numenius americanus (Long-billed Curlew)2
Oligocottus maculosus (Tidepool sculpin)2
Oligocottus snyderi (Fluffy sculpin)3
Oncorhynchus clarkii (Cutthroat trout)3
Paralabrax maculatofasciatus (Spotted sand bass)2
Phalacrocorax auritus (Double-crested Cormorant)2
Pluvialis squatarola (Grey Plover)3
Podiceps auritus (Horned Grebe)2
Podothecus accipenserinus (Sturgeon-like sea-poacher)2
Psettichthys melanostictus (Pacific sand sole)3
Sebastes caurinus (Copper rockfish)4
Sebastes flavidus (Yellowtail rockfish)2
Synthliboramphus antiquus (Ancient Murrelet)2
Tursiops truncatus (Bottlenosed Dolphin)2
Uria aalge (Common Murre)2


Aechmophorus occidentalis (Western Grebe)[5]
Ardea herodias (Great Blue Heron)[5]
Cepphus columba (Pigeon Guillemot)[4]
Dosidicus gigas (jumbo squid)[7]
Eumetopias jubatus (Steller Sea Lion)[4]
Gadus macrocephalus (Pacific cod)[4]
Hydroprogne caspia (Caspian Tern)[7]
Leptocottus armatus (Cabezon)[4]
Mergus merganser (Common Merganser)[7]
Mergus serrator (Red-breasted Merganser)[7]
Nycticorax nycticorax (Black-crowned Night-Heron)[6]
Oncorhynchus clarkii (Cutthroat trout)[8]
Oncorhynchus tshawytscha (chinook salmon or king salmon)[4]
Orcinus orca (Killer Whale)[4]
Phalacrocorax auritus (Double-crested Cormorant)[4]
Phalacrocorax pelagicus (Pelagic Cormorant)[5]
Phalacrocorax penicillatus (Brandt's Cormorant)[4]
Phoca vitulina (Harbor Seal)[4]
Phoca vitulina richardii (Harbor seal)[5]
Phocoena phocoena (Harbor Porpoise)[7]
Podiceps auritus (Horned Grebe)[5]
Pseudobatos productus (Shovel-nose shark)[4]
Sternula antillarum (Least Tern)[7]
Uria aalge (Common Murre)[7]
Zalophus californianus (California Sealion)[7]


Parasitized by 
Ascocotyle diminuta[4]
Echinorhynchus gadi[9]
Genolinea anura[9]
Gyrodactylus armatus[4]
Hysterothylacium magnum <Unverified Name>[9]
Neobenedenia melleni[9]
Podocotyle radifistuli[9]
Podocotyle sinusacca[9]
Pygidiopsoides spindalis[4]
Rhipidocotyle elongata[4]
Tubulovesicula lindbergi[9]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
John G. Shedd Aquarium

Range Map

Alaska (USA); America, North - Inland waters; California Current; Canada; East Bering Sea; Eastern Pacific: Izembek Lagoon, on the southeastern Bering Sea coast of Alaska to Bahia San Quintin, northern Baja California, Mexico.; Fraser; Gulf of Alaska; Mexico; Pacific Ocean; Pacific, Eastern Central; Pacific, Northeast; Pacific, Northwest; Russian Federation; USA (contiguous states); West Bering Sea;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3Community composition and diet of fishes as a function of tidal channel geomorphology, Tammie A. Visintainer, Stephen M. Bollens, Charles Simenstad, Mar Ecol Prog Ser 321: 227–243, 2006
4Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
5Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
6Lafferty, K. D., R. F. Hechinger, J. C. Shaw, K. L. Whitney and A. M. Kuris (in press) Food webs and parasites in a salt marsh ecosystem. In Disease ecology: community structure and pathogen dynamics (eds S. Collinge and C. Ray). Oxford University Press, Oxford.
7Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Forage species in predator diets: synthesis of data from the California Current. Ecological Informatics 29(1): 45-56. Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Data from: Forage species in predator diets: synthesis of data from the California Current. Dryad Digital Repository.
8Coastal Cutthroat Trout (Oncorhynchus clarki clarki) Diet In South Puget Sound, Washington 1999 – 2002, Joseph M. Jauquet, Masters Thesis, Evergreen State College, 2002
9Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access